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Avidin D, Texas Red® labeled, is a highly fluorescent conjugate of Avidin D and sulforhodamine 101. Texas Red® Avidin D excites at about 595 nm and has an emission maximum at about 615 nm. Since the excitation and emission maxima are well separated from those of fluorescein, Texas Red® Avidin D can be employed with Fluorescein Avidin D or other fluorescein conjugates to simultaneously localize two antigens in the same tissue section. Texas Red® Avidin D is also ideal for flow cytometry using instruments equipped with dye lasers. |